BS EN 10253-2:2021

This standard BS EN 10253-2:2021 Butt-welding pipe fittings is classified in these ICS categories:

• 23.040.40 Metal fittings
• 77.140.20 Stainless steels
• 77.140.45 Non-alloyed steels

This document specifies the technical delivery requirements for seamless and welded butt?welding fittings (elbows, concentric and eccentric reducers, equal and reducing tees, caps) made of carbon and alloy steel in two test?categories which are intended for pressure purposes at room temperature, at low temperature or at elevated temperatures, and for the transmission and distribution of fluids and gases.

It specifies:

1. type of fittings;

   1. type A: Butt-welding fittings with reduced pressure factor;

   2. type B: Butt-welding fittings for use at full service pressure;

2. steel grades and their chemical compositions;

3. mechanical properties;

4. dimensions and tolerances;

5. requirements for inspection and testing;

6. inspection documents;

7. marking;

8. protection and packaging.